Textile Science and Engineering (한국섬유공학회지)

The Korean Fiber Society (한국섬유공학회)
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Analysis of the Linear Density Behavior of Drawn Sliver. I. Effects of Staple Length Distribution and Sliver Viscosity

연조 슬라이버의 선밀도 거동 해석. I. 스테이플 길이 분포와 슬라이버 점도 효과

  • Lim, Jung Ho (Laboratory for Innovative and Intelligent Process and Control, Kyunghee University) ;
  • Kim, Jong S. (Department of Mechanical Engineering, College of Engineering, Kyunghee University) ;
  • Huh, You (Department of Mechanical Engineering, College of Engineering, Kyunghee University)
  • 임정호 (경희대학교 지능 공정 및 제어 연구실) ;
  • 김종성 (경희대학교 공과대학 기계공학과) ;
  • 허유 (경희대학교 공과대학 기계공학과)
  • Received : 2017.09.05
  • Accepted : 2017.10.07
  • Published : 2017.10.31
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Abstract

This study deals with the thickness irregularity of the sliver delivered from a drawing process based on a theoretical model. The thickness variation was expressed as CV(%) of the linear density of the drawn sliver in a steady state. Under the given simulation conditions the simulation results illustrate that the sliver linear density shows two types of behavior: a constant linear density and a periodically changing linear density with traveling peaks. For uniform staple-length slivers the linear density has multi-modal fluctuations, whereas the slivers with a distributed staple length show no fluctuation in the linear density at low sliver viscosity. The irregularity of uniform staple-length slivers is higher than that of the staple length distributed one. As the sliver viscosity increases, the irregularity of the drawn slivers increases.

Keywords

References

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